879541a918
Make serial console interface more robust. Enables interrupts only when registering input, all memory is managed inside application. Interface to application is changed to have two fifo queues. One queue is a free line slots and another queue is keeping entered lines. This way memory for lines is managed inside application which provides free lines queue. It is also simpler to manage entered lines by sleeping on fifo_get on app layer. Change-Id: I4776c03eddd1e7d880df3b902bd48f5f2c901cad Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/* uart_console.h - uart console driver */
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/*
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* Copyright (c) 2011, 2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _UART_CONSOLE__H_
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#define _UART_CONSOLE__H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <cputype.h>
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#include <nanokernel.h>
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extern void uart_console_init(void);
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#define MAX_LINE_LEN 1024
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struct uart_console_input {
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int __unused;
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char line[MAX_LINE_LEN];
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};
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/** @brief Register uart input processing
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*
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* Input processing is started when string is typed in the console.
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* Carriage return is translated to NULL making string always NULL
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* terminated. Application before calling register function need to
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* initialize two fifo queues mentioned below.
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*
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* @param avail nano_fifo queue keeping available input slots
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* @param lines nano_fifo queue of entered lines which to be processed
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* in the application code.
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*
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* @return None
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*/
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void uart_register_input(struct nano_fifo *avail, struct nano_fifo *lines);
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void uart_console_isr(void *unused);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _UART_CONSOLE__H_ */
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